Disclaimer: I don't own Madoka Magica. Shaft does.
I would recommend looking up surfer slang if you're not a surfer.
"Mami, who's that?" Madoka asked her surf teacher.
"Whom?" she replied, her golden eyes scanning the equally golden beach.
"The red-haired benny over there," Sayaka said, pointing at the girl Madoka was looking at. Her crimson hair blew in just as many waves as the ones they were surfing on; she was paddling straight towards them, a maniacal grin on her face.
Mami narrowed her eyes, saddened by the sight of Kyoko. "That's a former of student of mine. Stay away from her. She's quite the aggro." The teacher was almost glad that her former student chose to drench her with an anamilistical. It kept her current students from seeing the tears in her eyes.